Kuala Lumpur: An Indian national, believed to be part of an international Sikh militant group, has been deported by Malaysian authorities to India which sought his extradition to face trial.

Satpal Singh Raghvir Singh, 41, was arrested in the suburb of Cheras for immigration offences on January 4 and deported to India on Thursday.

"We believe he is part of a Sikh militant group called Babbar Khalsa International (BKI)," said Special Task Force (Operations and Counter Terrorism) Director Mohamad Fuzi Harun.

"He had been supplying the group with fake travel documents and using our country as a transit point for the group's activities," Harun said.

He said Satpal had forged documents for several BKI members who were involved in a series of bombings in India in 2006. Police apparently tracked down the suspected militant, who has been in the country since 2006, following the arrest of four BKI members.

The four included restaurant operator Amarjit Singh Jasvir Singh, music teacher Daljit Singh Ajaib Khalsa and construction contractor Kawal Singh Soundh, who were all arrested on August 4, 2011. Another, named Daljeet Singh Tarsem Singh, was detained on May 13.

"We will continue to work closely with our counterparts in other countries to detect and eliminate such militant elements from within our borders," Harun added.